Many thought it was' miasma ', bad air, which played a key role in the transmissionofdisease.
很多人都认为“迷雾”，或者坏的空气，是传播疾病的罪魁祸首。
2
One of the FDA’s proposed measure of preventing the transmissionofdisease and bacteria in milk is to heat the milk.
食品及药物监管局的一位人员建议预防牛奶里疾病细菌传播的方法是把牛奶加热。
3
Yet in practice the greatest risk in blood transfusion is not the transmissionofdisease but the accidental transfusion of the wrong blood group, he says.